NPTI
| Acronym | Definition |
|---|---|
| NPTI | National Power Training Institute (Ministry of Power, India) |
| NPTI | National Personal Training Institute (Corona Del Mar, California) |
| NPTI | Northeastern Pennsylvania Technology Institute (est. 2003) |
| NPTI | New Plus Type Indicator (financial psychological indicator) |
| NPTI | New Professions Technical Institute |
| NPTI | National Piano Teachers Institute (Dallas, TX) |
| NPTI | NonProfit Training Institute |